通过php"exec"挂载时出错 [英] Error on mount through php "exec"

问题描述

我正在尝试安装iscsi虚拟磁盘，但是如果我通过php中的exec函数执行命令，则会给我该错误:mount: special device /dev/sdf1 does not exist. 但是，如果我直接在控制台中运行命令，它将运行良好！！ 我能做些什么? 我正在以一种很好的方式获得/dev/sdf1，并且它存在，但是仅通过php无法正常工作.

I'm trying to mount an iscsi virtual disk, but if I execute the command through the exec function in php this give me that error: mount: special device /dev/sdf1 does not exist. But if I run the command directly in the console it run well!! What can I do? I'm obtaining the /dev/sdf1 in a good way, and it exists, but only through php doesn't work.

我正在使用sudo运行命令，并始终使用sudo以www-data用户身份在控制台中运行它，因此，我认为这是相同的环境.

I'm running the command with sudo and run it in console as www-data user always with sudo, so, I suppose that is the same enviroment.

sudo mount -t ext3 /dev/sdf1 /san_disks/RIBS_2

sudoers文件具有以下几行:

The sudoers file has this lines:

www-data    ALL = (root) /usr/bin/iscsiadm, /bin/mount, /bin/umount
%www-data ALL=NOPASSWD: ALL

它可以在控制台中工作.

And it works in console.

推荐答案

之所以发生这种情况，是因为未更新"/dev".我做了一个睡眠(1)，而且有效！！

This was happening because "/dev" wasn't updated. I made a sleep(1) and it works!!

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